Institute says invasive plant varieties threaten ecosystem

Among the invasive plant varieties that are not friendly for the Ethiopian
ecology are parthenium hysterophourus, prosopis juliflora, Eichornia crassipes
and Lantana camara, he added.

http://www.waltainfo.com/walnew/index.php?option=com_content&task=view&id=10733&\
Itemid=45